ozone layer prevents harmful UV radiations to reach earth's atmosphere. ozone is formed at the higher level of atmosphere by the action of UV radiation on molecule. High energy UV radiations split apart some oxygen molecules into atomic oxygen which react with molecular oxygen to form ozone molecules.
UV-B radiations are very harmful. They can cause various fatal diseases in human beings.
In days of ozone high level, the UV rays are in large quantity. It is better to stay indoors.
Meteorologists use a little thingy called the UV index which measures the UV number and the exposure level to the number like say 0-2 would be a low exposure level showing that UV value isn't very high or 11+ which means a very high risk of exposure to UV rays meaning sunburn is more likely to happen than if it was 3-5 which is a moderate risk where you may get it but the chances aren't that high . note is say thingy because this isnt reliable :P kidding its true
UV-A
what is Philadelphia UV level.
the UV light kills single-celled organisms
UV rays are harmful rays of the sun. They are absorbed by the ozone layer.
UV rays are harmful rays of the sun. They are absorbed by the ozone layer.
It is Ultraviolet
ultra-violet
The acronym UV rays stands for ultraviolet radiation, a level of electromagnetic radiation that has a shorter wavelength than visible light.
activated by ultraviolet light
ozone layer prevents harmful UV radiations to reach earth's atmosphere. ozone is formed at the higher level of atmosphere by the action of UV radiation on molecule. High energy UV radiations split apart some oxygen molecules into atomic oxygen which react with molecular oxygen to form ozone molecules.
Oakley has created a lens material called Plutonite which has the ability to stop every level of UV radiation. Even all of Oakley's clear lenses are 100 percent UV protected.
UV-B radiations are very harmful. They can cause various fatal diseases in human beings.
In days of ozone high level, the UV rays are in large quantity. It is better to stay indoors.